Dust-collector.



F. J. MATCHETTE.

DUST COLLECTOR.

APPLICATION FILED 13110.21, 1908.

7 L Patented Sept. 2'7, 1910.

2 SHEETS-SHEET l.

WITNEEEES 6 w ATTURNEYE F. J. MATGHETTE.

DUST COLLECTOR.

APPLIOATION FILED DBO. 21, 1908. 9 39 Patented Sept. 27, 1910.

2 SHEETS-SHEET W WITNESSES [AH/ENTER figfl EY immm M @MWA AT'PQHNEYE support for sai FRANK J. MATCHETTE, 0F MILWAUKEE, WISCONSIN.

DUST-COLLECTOR.

Specification of Letters Patent.

Patented Sept. 27, 1910.

Application filed December 21, 1908. Serial No. 468,454.

To all whom it may concern:

Be it known that I, FRANK J. MATCHETTE, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Dust-Collectors, of which the following is a specification, reference being had to the accompanying drawing, forming a part thereof.

The main objects of this invention are to provide simple and efiective means for separating dust and dirt or other foreign matter from the air with which it is entrained, particularly in air cleaning apparatus; to facilitate removing dust and dirt from the strainer and keeping the meshes of the strainer open and in proper working condition; to provide for the eas removal and renewal of the strainer; an generally to simplify and improve the construction and operation of apparatus' of this class for the purpose stated.

It consists in the construction, arrangement and combination of parts as hereinafter particularly described and defined in the claims.

In the accompanying drawing like characters designate the same parts in the several figures.

.Figure 1 is a central vertical section of one of the preferred. forms in which the invention is embodied; Fig. 2 is a section on the line 2 2, F g. 1, of the adjustable support for the dust receptacle; Fig. 3 is a section similar to Fig. 1 of a modified form of the apparatus, and Fig. 4 is an inverted plan view of the closure and its fasteningsat the lower end of the casing shown in Fig. 3.

Referring to Figs. 1 and 2, the dust collector shown by thesefi ures comprises a casing a, preferably of cyhndrical form supported in an upright position by legs or standards 6 on a base 0 and having a discharge opening at its lower end; a strainer d suspended in and inclosed by the casing and having an opening at its lower end; a removable dust receptacle 6 forming a closure. for said 0 enings; and an adjustable receptacle.

The casing is provided with a dust and air inlet connection consisting-of a flanged pipe 9 and a flanged coupling tube It removably fitted in a central countersunk opening in the upper end of the casing and secured therein by the flange of the pipe 9 which is bolted or otherwise detachably fastened to the casing. Anair outlet pipe 71 is connected with a lateral opening in the upper part of the casing.

The strainer 03 made of cloth or similar flexible material and preferably in the form of a bag or cylinder to correspond with that of the casing,,but of somewhat smaller diameter, has conical or contracted end sections which may be made of the same 01' of different material, and is attached at its upper end around an opening therein to the coupling tube It by a cord or wire j, or other means, the lower end of the tube being outwardly beaded or flanged to assist in se curely holding the strainer in place thereon. At its lower end the strainer bag is attached around the opening therein by one or more rows of stitches is or by other suitable means, to a flanged packing ring Z made of rubber or other suitable flexible or elastic material and fitting into the opening in the lower end of the casing.

The dust receptacle 6 has an outwardly projecting rim or flange m fitting against the flange of said ring which is seated against the casing around the opening therein.

The adjustable support for the removable dust receptacle 6 may consist as shown by Figs. 1 and 2, of a vertically movable plate f provided on the under side with a central tubular stem or socket (piece f which is guided on a post nsecure in the base 0 centrally below the casing a. A weighted lever 0 fulcrumed in a stand 0 on the base 0 and forked to straddle said tubular stem and engage with the under side of said plate, tends to lift the receptacle thereon and to hold its rim or flange m against the packing ring Z, normally maintaining a dust and air tight joint between said receptacle and casing. The weight on said lever is made or adjusted so that when the receptacle is filled with dust or dirt to a certain level, it will overbalance the weight and normally hold the receptacle up against the packing ring, and will permit sald receptacle to descend thereby opening the joint between it and the casing and indicating to the operator or attendant that said receptacle should be emptied. The plate fis formed with a central recess r to receive a corresponding central boss or projection s on the bottom of the receptacle 6 or is otherwise made to engage therewith so as to center saidreceptacle with the casing and insure the opening in the top of the receptacle registering with the opening in the lower end of the casing when they are brought together;

The strainer being made of flexible material such as cloth and the packing ring I being also flexible, may be collapsed and withdrawn from the casing through the opening in its upper end with the cou(pling tube It to which t e strainer is attache an from which it is suspended .around the dust and air inlet, by sim 1y detaching the pi e g from the casing an moving it to one si e. In this way theparts of the dust collector may be easily assembled and the strainer readily removed and replaced 'or renewed.

In the operation of the apparatus, dust and dirt are drawn or carried with a current of air through the pipe 9 and coupling ring it into the upper end of the strainer ag The air passing outwardly through the meshes of the strainer is separated from the dust and dirt and escapes through the outlet 11, while the dust an dirt from which it is separated, settle and are discharged through the opening in the lower end of the strainer into the receptacle e, which is from time to time removed and em tied. The air which is drawn or forced w1th the dust and dirt into the strainer bag keeps it inflated. as shown in the drawing, while the apparatus is in o ration, thus dispensing with a frame or ot er provision for olding the bag in working condition. When the air current through the casing is shut off, the strainer bag will collapse, thereb tending to dislod e dust and dirt a hering thereto, and w en the dust receptacle e is removed, the bag can be easily shaken, agitated or beaten with a rod, so as to completely remove an dust or dirt still adhering thereto. In t is way the meshes of the strainer may be easily kept free and in pro er working condition.

Vshenever the dust receptacle 0 is filled sufliciently to overcome the external air ressure thereon and the weight on lever 0, 1t descends, interrupts the operation of the apparatus, and thus prevents the dust and dirt from accumulating in and clogging the strainer bag d. I

Referring to Figs. 3 and 4, showing a modification of the device, the construction and arrangement of parts are essentially the same as shown in Fig. 1 except that in place of the dust rece tacle e, a simple lid or cover e is provided for closing the discharge opening at the lower end of the easing and strainer. This lid or cover may be pressed and held tightly against the packing ring by a spring bar p forced at its ends into engagement with hooks or keepers g on the lower end of the casing and. on opposite sides of the discharge opening therein. v

Various changes in details of construction may be made without departing from the principle and scope of the invention.

I claim a I I 1. In a dust collector, the combination with a casing havin an o nin in the lower part thereof, a dust an air inlet and an air outlet, of a strainer bag inclosed in said casing between said inlet and outlet, and havin an opening in its lower end an elastic pac in rlng attached'to the stramer bag around t e opening in'the lower end thereof and fitting the casing around the openin in the lower art thereof, and a removab e closure fitte to said packing ring.

2. In a dust collector, the combination with a casing havin an opening in the lower part thereof an provi ed with an air and dust inlet and w1th an air outlet, a flexible strainer ba suspended in said casing around said in ct and between it and the air outlet and having an opening at its lower end, an elastic ring attached to said bag around the opening in its lower end and fitting the casing around the o ning therein, and a removable closure tted to said rm 3% In a-dust collector, the combination of a casing having an inlet opening in the upper part thereof, a discharge opening in t e ower part thereof, and an air outlet, of a coupling tube removably secured in said inlet opening, a flexible strainer bag attached at its upper end to said tube and having an opening at its lower end, an elastic ring attached to said bag around said opening and fitting the casing around the opening in the lower part thereof, and a removable closure fitted to said rin 4. In a dust collector, the combination of a casing having an opening in the lower part thereof, and provided with an air and ust'inlet and an air outlet; a strainer bag 1 suspended in said casing around said inlet an having an opening at its lower end, an elastic flanged packing ring attached to said bag around the opening in its lower end and fitting into the opening in the lower part of 1 the casin and a removable closure fitting against t e flange of said ring.

5. In a dust collector, the combination of a casing havin an opening in the lower part thereof an provided with an air and 1 dust inlet and an air outlet, a strainer b inclosed in said casing around said inlet an having an o ening at its lower end, an elastic packing ring attached to said bag around the opening in the lower end thereof and 1 fitting the casing around the opening in the lower part thereof, a removable closure fitted to said rin and means for pressing and holdin the c osure against said ring.

6. In a ust collector, the combination of 1 a casing having an o ning inthe lower part thereof and provided with an air and dust inlet and an air outlet, a strainer bag inclosed in said casing around said inlet and having an opening at its lower end, an tabs 1 tic packing ring attached to the bag around said opening and fitting the casing around the opening in the lower part thereof, and a removable dust receptacle fitted to said ring and forming therewith a closure for the openings in the bag and casing.

7. In a dust collector, the combination of a casing having an opening in the lower part thereof and provided with an air and dust inlet and an air outlet, a strainer bag inclosed in said casing around the inlet and having an opening at its lower end, an elastic packing ring attached to the bag around said opening and fitted to the casing around the opening therein, a removable dust receptacle fitted to said ring, and an adjustable support for pressing and holding said receptacle against said ring.

8. In a dust collector, the combination of a casing having an inlet opening in the upper part thereof, a discharge opening in the lower part thereof and an air outlet, of a removable flanged coupling tube seated in said casing around said inlet opening, means for securing said tube in its seat, a flexible strainer bag attached at its upper end to said tube and having a discharge opening at' its lower end, an elastic packing ring attached to the bag around said opening and fitted to the casing around its discharge opening, and a removable closure for said discharge openings seated against said ring, said bag and ring being removable with the coupling tube through the inlet opening of the casing.

9. In a dust collector, the combination of a casing having an opening in the lower part thereof and provided with an air and dust inlet and an air outlet, a strainer bag inclosed in said casing around said inlet and having an opening at its lower end, a. packing ring attached to the bag around the 5 opening in the lower end thereof and fitted to the casing around the opening in the lower part thereof, a vertically movable dust receptacle fitted to said ring and forming therewith a closure for the openings in the bag and casing, and a vertically yielding support for said receptacle adapted to permit it to descend when it is filled to a certain level.

10. In a dust collector, the combination of a casing having an opening in the lower part thereof and provided with an air and dust inlet and an air outlet, a strainer bag inclosed in said casing around said inlet and having an opening at its lower end, a packing ring attached to the bag around the opening at its lower end and fitted to the casing around the opening in the. lower part thereof, a removable dust receptacle fitted to said ring and forming therewith a closure for the openings at the lower end of the bag and easing, a vertically movable support for said receptacle, and a weighted lever adapted to sustain said support with the receptacle thereon against said ring until the receptacle is filled to a certain level and then to permit its descent.

11. In a dust collector, the combination of a casing having a discharge opening in the lower part thereof, and a vertically movable dust receptacle fitted to the casing around said opening and normally forming a closure therefor, said receptacle being adapted to descend when loaded to a certain limit.

I11 witness whereof I hereto afiix my signature in presence of two witnesses.

FRANK J. MATCHETTE. Witnesses:

CHAS. L. Gross, ARTHUR J. ZEALLEY. 

